All names: Gaia DR2 6446197877766956800, GALEX J191844.7-594635, WD 1914-598, TIC 219942866, Gaia EDR3 6446197877766956800, Gaia DR3 6446197877766956800, 2MASS J19184483-5946337, WDJ191844.83-594633.86, BPS CS 22891-0122, USNO-B1.0 0302-00763998
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Koester et al. 2014 | Gianninas et al. 2011 | Koester et al. 2009 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 19 18 44.79 (0.02) | 19 18 44.79 (0.04) | 19 18 44.79 | 19 18 44.83 (0.02) | 19 18 44.79 | 19 18 44.35 | |||||
| Declination | -59 46 34.64 (0.02) | -59 46 34.62 (0.03) | -59 46 34.64 | -59 46 33.87 (0.02) | -59 46 34.62 | -59 46 31.44 | |||||
| Spectral type | DA | DA | DA2.4 | DA | |||||||
| Effective temperature | [K] | 19231.0 (261) | 20830.0 (305) | 19756.0 (29) | 19649.0 (166) | ||||||
| log(g) | [cgs] | 7.85 (0.09) | 7.84 (0.04) | 7.84 (0.005) | 7.97 (0.007) | ||||||
| Mass | [M☉] | 0.541 (0.05) | 0.54 (0.02) | 0.607 (0.006) | |||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| log(C/H) | <-8.30 | ||||||||||
| log(N/H) | |||||||||||
| log(O/H) | |||||||||||
| log(Na/H) | |||||||||||
| log(Mg/H) | |||||||||||
| log(Al/H) | |||||||||||
| log(Si/H) | -8.3 (0.1) | ||||||||||
| log(P/H) | |||||||||||
| log(S/H) | |||||||||||
| log(Sc/H) | |||||||||||
| log(Ti/H) | |||||||||||
| log(Cr/H) | |||||||||||
| log(Mn/H) | |||||||||||
| log(Fe/H) | |||||||||||
| log(Ni/H) | |||||||||||
| Parallax | [mas] | 19.03 (0.03) | 19.00 (0.07) | 19.03 | 19.03 (0.03) | 19.00 (0.07) | |||||
| Distance | [pc] | 52.56 (0.09) | 52.64 (0.2) | 61.00 | 52.56 | 52.56 (0.09) | 52.64 (0.2) | ||||
| Composition | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -18.34434418 (0.03) | -18.25033861 (0.07) | -18.344 (0.03) | -18.25033861 | ||||||
| Proper motion (declination) | [mas/yr] | -48.55617239 (0.02) | -48.74542718 (0.06) | -48.556 (0.02) | -48.74542718 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 14.34 | ||||||||||
| V magnitude | 14.39 | 14.39 | |||||||||
| R magnitude | 14.40 | ||||||||||
| I magnitude | |||||||||||
| J magnitude | 14.85 (0.04) | ||||||||||
| H magnitude | 14.96 (0.08) | ||||||||||
| K magnitude | 15.17 (0.2) | ||||||||||
| u magnitude | |||||||||||
| g magnitude | |||||||||||
| r magnitude | |||||||||||
| i magnitude | |||||||||||
| z magnitude | |||||||||||
| G magnitude | 14.39 (0.001) | 14.40 | 14.39 | 14.39 (0.003) | 14.40 | ||||||
| BP magnitude | 14.31 (0.001) | 14.28 | 14.28 | ||||||||
| RP magnitude | 14.56 (0.002) | 14.56 | 14.56 | ||||||||
| Pan g magnitude | |||||||||||
| Pan r magnitude | |||||||||||
| Pan i magnitude | |||||||||||
| Pan z magnitude | |||||||||||
| Pan y magnitude | |||||||||||
| E(B-V) | 0.005 | ||||||||||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.